Quick HOWTO : Extend a filesystem in AIX command line

Suppose you want to extend /usr file system to 4GB

chfs -a size=4G /usr
chfs -a size=4000M /usr

or you want to add some more space like 2GB with existing size
chfs -a size=+2G /usr 

You can extend the root file system same way. Suppose the new size you want is 2GB, then

chfs -a size=2G / 
chfs -a size=2000M /

Hope this will be helpful :)

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